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Blue-Green Algae: Resources for Health Professionals

On this page you will find resources for clinical and public health professionals about blue-green algae-related illness.

Doctor holding clipboard with papers discussing medical form with patient

Aluminum blue-green algae signage is now available for local public health, tribal, and select DNR authorities to purchase. Please email the Harmful Algal Blooms (HAB) Program for ordering instructions.


Examples of blue-green algae signage

HAB Program newsletters

Sign up to receive our Harmful Algal Blooms Program Newsletter!

If you are a public health or environmental health specialist who would like to receive the monthly newsletter, please email and ask to be added to the list.

How to report a suspect case of blue-Green Algae (Cyanobacteria) poisoning

Healthcare providers should report any suspected human cases of Cyanobacteria and Cyanotoxin Poisoning electronically through WEDSS, or by mailing, or faxing a completed Acute and Communicable Disease Case Report, F-44151 (PDF) to the address on the form.

Last revised February 24, 2023